Ryzen 9 3900XT vs Ryzen 9 8945HX comparison
Our benchmark analysis concludes that the Ryzen 9 8945HX performs better than the Ryzen 9 3900XT. Despite this, the Ryzen 9 3900XT has the advantage in our gaming benchmark.
When comparing core counts for these CPUs, we notice that the Ryzen 9 8945HX has slightly more cores with 16 cores compared to the Ryzen 9 3900XT that has 12 cores. It also has more threads than the Ryzen 9 3900XT. These CPUs have different clock speeds. Indeed, the Ryzen 9 3900XT has a significantly higher clock speed compared to the Ryzen 9 8945HX. Despite this, the Ryzen 9 8945HX has a slightly higher turbo speed. The Ryzen 9 8945HX outputs less heat than Ryzen 9 3900XT thanks to a significantly lower TDP. This measures the amount of heat they output and can be used to estimate power consumption. The cache sizes of these CPUs are different. Indeed, the Ryzen 9 8945HX has significantly more L2 cache than the Ryzen 9 3900XT. However, both these chips have the same amount of L3 cache.
The more cores a CPU has, the better the overall performance will be in parallel workloads such as multitasking. Many CPUs have more threads than cores, this means that each physical core is split into multiple logical cores, making them more efficient. Indeed, the Ryzen 9 3900XT has more threads than cores. Each physical core is split into multiple threads.
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